Hydrogen-induced CO2 formation from ethylene deposits on Pt during consecutive O2 and H2 exposures |
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| Authors: | Petronella Norberg Ingemar Lundström Lars-Gunnar Ekedahl |
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| Affiliation: | (1) Department of Physics and Measurement Technology, Linköping University, 581 83 Linköping, Sweden |
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| Abstract: | The oxidation of C2H4 deposits on polycrystalline Pt when exposed to consecutive O2 and H2 pulses at room temperature has been investigated in a long (L = 36 mm), shallow (d = 600–700 nm) micromachined glass–SiO2–Pt channel. Hydrogen-induced CO2 formation from species accumulated on the Pt surface was observed. Frequent switching of the O2/H2 exposure pulses was found to increase the efficiency of the oxidation of the carbonaceous deposits markedly. The observations may be of general interest for the regeneration of contaminated catalysts. |
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| Keywords: | catalysis carbonaceous contaminants regeneration of catalyst ethylene carbon monoxide carbon dioxide platinum hydrogen oxygen |
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